The man, Arthur Shanklin, 32, of the 1300 block of 76th Street, was pronounced dead at 3:07 a.m. on the scene, according to the Cook County medical examiner's office. An autopsy Tuesday determined he died of multiple gunshot wounds and his death was ruled a homicide, the Cook County Medil cal.

No suspects were in custody early this morning as detectives investigated the shooting.

In a separate fatal shooting, a 23-year-old died after he and a 17-year-old boy were shot in the Back of the Yards neighborhood Monday morning. The shooting happened at 8:55 a.m. in the 5000 block of South Winchester Avenue, according to News Affairs Officer Janel Sedevic.

The 23-year-old was taken to Holy Cross Hospital and was dead on arrival, Sedevic said. He was identified as Joseph Lewis, of the 3500 block of West 60th Place, according to the Cook County medical examiner's office.

The 17-year-old was taken in critical condition to John H. Stroger, Jr. Hospital of Cook County.

In nonfatal shootings:

• About 3:30 a.m. Tuesday, a 27-year-old man was shot in the leg during an armed robbery in the 0-100 block of South Leamington Avenue in the South Austin neighborhood on the West Side, police said. Someone shot the man in the leg, took cash and fled the scene, police said. The man was taken to Mount Sinai Hospital, where his condition was stabilized.

• Four people were shot around 10:40 p.m. Monday in the 6700 block of South Stony Island Avenue in the Grand Crossing neighborhood on the South Side, according to police. Police say four people were hit as they stood in the parking lot of a Pizza Hut. A 16-year-old girl was shot in the thigh; a woman, 22, was wounded in the neck; another woman, 18, suffered a graze wound to the stomach; and a man, 26, was shot in the leg. Their conditions were all stabilized, with the girl and the 26-year-old man treated at John H. Stroger Jr. Hospital of Cook County, the 22-year-old woman treated at Northwestern Memorial, and 18-year-old woman treated at the scene, the according to police.

• About 9:20 p.m. Monday, a 48-year-old woman was grazed by a bullet in the 5600 block of South Elizabeth Street in the Englewood neighborhood on the South Side, police said. Police said a gun discharged accidentally and that the woman suffered a graze wound to the head. She was taken to Advocate Christ Medical Center in Oak Lawn in fair condition.

• On the city's Far South Side about 5:45 p.m. Monday, a man was grazed in the back of the head while he was walking in the 200 block of West 104th Place in the Fernwood neighborhood, said News Affairs Officer Thomas Sweeney. The man, age 20, was taken to Advocate Christ Medical Center in Oak Lawn where he was listed in good condition, according to Sweeney.

• About 11:10 a.m. Monday, a 17-year-old boy was shot in the back in the 5400 block of South Halsted Street, in the city's Back of the Yards neighborhood, Sedevic said. The teen was taken to John H. Stroger, Jr. Hospital of Cook County, where he was in serious condition, said Sedevic.

• In another Monday morning shooting, a 31-year-old man was shot about 8:50 a.m. while driving in the 1600 block of North St. Louis Avenue in the Logan Square neighborhood on the Northwest Side, Sedevic said. Someone in another vehicle drove up to the 31-year-old's vehicle and fired shots, hitting him in the arm. The injured man than drove himself to Norwegian American Hospital, where he is in good condition, Sedevic said.